Made for Zone2Source in the Amstelpark, Amsterdam.
To hear this piece you need an GPS-equipped android phone and headphones.

instructions:

1. The starting point is the Glazen Huis in the park.

2. Connect to "Free Wi-fi Hello Zuidas"

4. Launch the app. If GPS is on, you should be able to find "Secret Garden" in the list of pieces.

Select "Secret Garden and then choose "Sync". to download the sounds to your phone.

When it has finished you can press "play".

5. Walk around the park to find the sounds.
Your position and movement determines what you hear.
You can use the map to guide you.
The places marked with a number contain long pieces which continue to develop as long as you stay there.